Safety-razor.



G. M. HISKEY.

SAFETY RAZOR.

APPLICATION FILED SEPT. 30. 1912.

Patented May 15, 1917.

v 28 1 A6 4 I I ...l. M W w gnu 1101- GEORGE M. HISKE Y, 0F LOS ANGELES, CALIFORNIA.

SAFETY-RAZOR.

Specification of Letters Patent.

Patented May 15-, r91 7.

Application filed September 30, 1912. Serial No. 723,033.

To all whom it may concern: 7

Be it known that I, Gnonen M. HISKEY, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Safety-Razors, of which the following is a specification.

This invention relates to razors and more particularly to devices more commonly called safety razors, and the principal object of the invention is to provide a razor of this character that will provide the efiicient drawing out with the proper inclination of the blade to the skin.

It isralso an object to provide a cylindrical structure to inclose a blade of a razor so that it will be impossible to cut the skin to which it is applied, the blade assuming a tangential and spiral'relation to the external surface of the device.

It is a further object to provide a safety razor in which the blade is readily inserted, and locked by adjustable means for determining the amount of the cut.

In the drawings accompanying this specification y g Figure l is afront elevation of the device, showing the different hinged positions of the handle. v

Fig. 2 is a cross section on the line 22 of Fig. 1, a portion of the handle being shown in elevation.

Fig. 3 is an end view of the blade introducing end of the razor showing the blade j ust inserted.

Fig. 4 is a detail razor blade.

Fig. 5 is a detail of the locking end of the device, being a plan view with a portion broken away. V

. Fig. 6 is a detail end view of this end of the razor body.

Fig. 7 is a detail of the modification, showing the device adapted for a plurality of blades, the handle being secured to one end.

perspective view of the of Fig. 7 looking in the direction of the arrows. Fig. 9 is a side elevation of the sleeve. This invention overcomes the diificulties Fig. 8 is a cross section on the line 8-8 frequently found in safety razors improvidmg a protected razor blade with an inclined edge providing the draw out of the skilled barber, and the edge supported in relation to a cylindrical body so that the edge is tangentially placed in relation to the protecting surface with the flat of the blade practically parallel to the skin surface. The razor blade is also readily adjusted to provide for the clean or coarse shave as desired, and positively locked in position to perform these various cutting operations, the cutting edge also being so close to the ends of the body that sharp corners on surfaces to be shaved can be reached. v

More specifically in the drawings like numerals indicate similar parts in the different views, 10 designating the cylindrical body .of the razor pivotally and removably secured to the handle 11, also preferably cylindrical in form. The handle member is formed of a plurality of parts, the cylindrical portion 11 being internally screw threaded at one end to engage with the stud 12, having a threaded extension 13, the stud being pivoted at the pivot 14: secured in the lugs 15 brazed to ber 10. a

The body member '10 is preferably a cyllnthe walls of the body mem- Kdrical receptacle formed of a metallic tube of light but stiff material, being closed at one end by the wall 16, this wall being of the general configuration, shown in the end view of Fig. 3, provided with the narrow rim portion 17, the peripheral edges extending slightly beyond the peripheral surfaces of the body member 10, the portion adj oining the slot 18 being smooth and placed such a. distance out from the surface to provide a protection at this point to the razor blade. Extending from the opening or slot 18 in the wall 16 is the longitudinal slot 19 cut through the walls of-the tube 10 at an angle to this axial plane of the tube carried through the opening 18, the plane of the edge of the wall 16, a plurality ofteeth being formed on either side of the slot terminating on the edge of the slot. The lower line of teeth 21 are preferably longer and face the cutting edge of the blade; The inner surfaces are beveled from without inwardly, as clearly shown in Fig. 2, to meet the inner-periphery on the wall and allow the hair to pass between them to meet the blade, but prevent-the skin from coming in contact with the latter. The upper teeth 22 are shorter, and serve to form a backing for the razor, and their edges are merely turned off to a smooth surface exteriorly.

Embraced and closely fitting within the tube 10 is the cylindrical sleeve 24, one end of this sleeve being closed by the cap or wall 25, it also having a rim projecting beyond the exterior peripheral surface of the sleeve so that when it is placed in position in the body 10, this rim projects an equal distance beyond the peripheral surface of the device equal to that of the-wall 16, its edges being also serrated on its circumference, excepting a portion which forms a base to the slots adjacent thereto, and will come where the rim bears against the skin. The sleeve is provided with a plurality of slots, the width of the narrow slot 26 being slightly greater than the thickness of the wafer blade, and

extending from the free and open end of the sleeve through the peripheral wall to the wall 25 and in the same relative plane as the slot 19. Placed adjacent and parallel to the latter slot 26, and spaced a distance equal to about two-thirds of the width of the wafer blade, is the second slot 27, wide enough to allow the free escape of the lather and removed hair, and approximately the width, of the slot spacebetween the serrations forming the teeth, the slot preferably 7 extending from the rim 20'to a, point close to the interior edge of the sleeve wall. The

surface included between these two slots and adapted to support .the wafer blade is reduced 1n thickness approximately, the thickness of theblade' forming 'a' depression in which this latter'is interposed by the rotation.

The wafer blade is, as-shown, preferably formedof th n metal capable of receiving the razor edge 29 which is ground parallel to the lip 30-formed on the rearward edge of the blade, this lip being upturned to an extent suflicient only to engage with the edge of the metal form ng the sleeve and so as not to mat 'ally interfere with the sharpening- 'or resharpening of the blade, Thenmaterial of this blade is necessarily sufliciently flexible' so that after it is introduced {-into the body member from the, wall-16 when the slo't 26 registers with the opening in the end wall, and the slot'19, it Wlll readilg conform to. the-walls and the spiral slot. The blade is then slipped into the slot the full distance, or until the inclined edge 31 clears the wall and rim of the wall 16, and the opposite in: clined edge 32 butts against the opposite end of the slot-19. The sleeve is now grasped with the fingers of one hand andturned in the direction indicated in Fig.3, the blade is drawn back between the sleeve 24 and the wall of the 'body l0,'its flat surface conforming with the cylindrical surface of the interior periphery of the body 10 andoccupying the depressionsbetween the slots 26 and 27 the blade being withdrawn into, the slot 19 the distance required.

To regulate and lock the two members positively, the spring detent 35 isprovided,

rlgidly secured to the body 10 by the rivet 36 so that it preserves a positive relation to the rim of thewall 25, its engaging portion being cut to a V as indicated by 37 behind the mclined latch 38, so as to fit into the notches 39 formed in the narrow rim of the wall 25. These notches are cut in the proper intervals to provide for adjustment of the blade between the teeth where the cutting edge will provide what is called a coarse or clean shave or other intermediate relations of the blade to the skin bearing S111,

threaded to the stud 41 secured to the end wall 25 ofthe sleeve 24, this razor being designed to be revolved as it is drawn over the surface to be shaved.

As will be readily seen in'Fig. 1, the angle 1 of thehandle with relation to the'longituf dinal axis of the body may be changed to suit the individual operating the device, and the cutting edge occupies apractically tangential relation to the bearing surface of the razor and is as near a parallel position to the skin to which it is applied as is practical and to produce the best results. The inclined and spiral edge as the razor progresses in the plane at right angles to its 7 axis, compels the blade 'to give the desired draw at a fixed angle to'the plane thereof,

thereby producing the sawing cut used by the skilled barber, and thus-accomplishing its purpose with least injury and detriment to the razor edge as wellas' the skin operated. upon. The end of the cutting edges areonly removed from the'outer limits of the device by the thickness of the knurled rims, so that any sharp-corner or angle may be negotiated. I

to said tubular body, and means to secure the blade in adjusted position.

2. A safety razor, comprising a tubular bodyhaving a spirally located slot on its peripheral surface, a flexible blade held within the tubular body with its edge projecting from said slot, and means to adjust said blade.

A safety razor, comprising; a hollow cylindrical body having a series of grooves transversely disposed in its peripheral surface forming teeth, and provided with a longitudinally extendin grooves, and a razor blade slidably supported internally thereto and in contact with the wall thereof and having its cutting edge projecting tangentially into said slot.

4. A safety. razor, comprising a hollow cylindrical spirally slotted body, a cylindrical spirally slotted razor supporting sleeve closelyfitting within and revolubly mounted in peripheral engagement with said body,

and a razor blade mounted longitudinally fing spirally between said sleeve and said 5. A safety razor, comprising a hollow cylindrical body having a slot formed in its wall in a plane inclined to its axial plane, a razor supporting sleeve having a shallow depression parallel with said slot slidably mounted in said body, and a razor blade seated in said depression adjacent said slot and held therein by said cylindrical body with its cutting edge projecting into said slot and protected by the walls forming said s 0t. 7

body having a series of transversely disposed teeth adjacent to and forming one edge of a longitudinal slot in its peripheral wall, a handle secured to said body,.a tubu-- ing one edge of a longitudinal slot in its wall, a ban le secured to said body, a slotted slot cutting said,

6. A safety razor, comprising a tubular sleeve mounted within said body and provided with a shallow depression parallel with and adjoin-ing the slot in said sleeve that is parallel and adapted to register with said longitudinal slot in said body, and a blade secured in said depression and interposed between and engaging with said sleeve and said body, the cutting edge of said blade projecting across said slots when they reglster.

8. A safety razor, comprising a hollow cylindrical spirally slotted bodyfhaving a closure at one end provided with an open ing, said opening registering with said slot, a cylindrical member having a recess registering with said spiral slot and said open ing and closely fitting within said body, and

a razor blade adaptedto be inserted into said recess through the. opening in said body closure, whereby said blade is interposed between said body and cylindrical member vvl ith its cutting edge exposed in said spiral s 01:.

9. A safety razor, comprising a hollow cylindrical body closed .at oneendand provided with a spiral slot in its wall extending from a point close to its open end-throu h the closure, a sleeve fitting the inner perip cry of said body provided with a plurality of slots registering with and-parallel with the spiral slot insaid body, one of said slots extending to its free edge and abutting on said closure, a razor blade adapted to be inserted in said slots registering with said opening in the closure, and means whereby the sleeve may he revolved in said body to interpose said razor blade between said sleeve and said body so that its cutting edgeis tangentially exposed in said slot in receptacle.

teeth terminating at onevedge of said slot, a handle pivotally secured to said body, a slotted sleeve embraced by said body and fitting within the same, a knurled rim closure to said sleeve closingthe open end of said receptacle, a razor blade adapted to slide into the registering slotsof said body and sleeve having a cutting edge and a lipped edge, said sleeve revolubly mounted in said body to interpose said razor blade between said .sleeve and said body, so that its cutting edge is tangentially exposed in said slot in proximity to saidteeth, and a locking mechanism, whereby the blade is adjustably lecked in relation to said body an'd'its spiral s 0t.

body member, a concentrically formed member mounted in slidable relation thereto, and, av razor blade supported intermediate, the parallel and engaging portions of. sa d members. a

11. A razor comprising a slotted arcuate 12. A safety rezor, comprisinga spirally slotted tubular body, and a razor blade Within said body with its longitudinal edge projecting through said spiral slot and be- 5 ing of such resiliency that it may be tangentially and, spirally supported in relation-to the lnternal periphery of said'tubular body.

j. n I 1326314 I In-witness that I claim the foregoing I have hereunto subscribed my name this 18th day ofjSept, 1912. 1

Witnesses:

W. P. KEENE, EARLE R. POLLARD.

. GEORGE M. HI SKEY. I 

